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93 lines
3.7 KiB
C#
93 lines
3.7 KiB
C#
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//! \file ArcTPF.cs
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//! \date 2018 Jan 01
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//! \brief TPF FILE archive implementation.
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//
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// Copyright (C) 2018 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.IO;
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using GameRes.Compression;
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namespace GameRes.Formats.Giga
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{
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internal class TpfEntry : PackedEntry
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{
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public uint InterimSize;
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public byte Compression;
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}
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[Export(typeof(ArchiveFormat))]
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public class TpfOpener : ArchiveFormat
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{
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public override string Tag { get { return "TPF"; } }
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public override string Description { get { return "Giga resource archive"; } }
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public override uint Signature { get { return 0x20465054; } } // 'TPF FILE'
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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if (!file.View.AsciiEqual (4, "FILE"))
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return null;
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int count = file.View.ReadInt32 (0xC);
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if (!IsSaneCount (count))
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return null;
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uint index_offset = 0x10;
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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{
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var name = file.View.ReadString (index_offset, 0x20);
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byte compression = file.View.ReadByte (index_offset+0x23);
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var entry = FormatCatalog.Instance.Create<TpfEntry> (name);
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entry.Compression = compression;
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entry.IsPacked = compression != 0;
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entry.Offset = file.View.ReadUInt32 (index_offset+0x24);
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entry.InterimSize = file.View.ReadUInt32 (index_offset+0x28);
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entry.UnpackedSize = file.View.ReadUInt32 (index_offset+0x2C);
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index_offset += 0x30;
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if (entry.UnpackedSize != 0)
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{
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entry.Size = (uint)(file.View.ReadUInt32 (index_offset+0x24) - entry.Offset);
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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}
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}
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return new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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Stream input = arc.File.CreateStream (entry.Offset, entry.Size);
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var pent = entry as TpfEntry;
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if (null == pent || !pent.IsPacked || pent.Compression > 2)
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return input;
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if (2 == pent.Compression)
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input = new HuffmanStream (input);
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return new LzssStream (input);
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}
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}
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}
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